NO20005541L - Vibrasjonsaktuator med en magnetisk krets som er elastisk understöttet av en spiraldemper med ökt elastisitet - Google Patents

Vibrasjonsaktuator med en magnetisk krets som er elastisk understöttet av en spiraldemper med ökt elastisitet

Info

Publication number
NO20005541L
NO20005541L NO20005541A NO20005541A NO20005541L NO 20005541 L NO20005541 L NO 20005541L NO 20005541 A NO20005541 A NO 20005541A NO 20005541 A NO20005541 A NO 20005541A NO 20005541 L NO20005541 L NO 20005541L
Authority
NO
Norway
Prior art keywords
coil
damper
magnetic circuit
effective
determined
Prior art date
Application number
NO20005541A
Other languages
English (en)
Other versions
NO20005541D0 (no
Inventor
Toru Kumagai
Original Assignee
Tokin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokin Corp filed Critical Tokin Corp
Publication of NO20005541D0 publication Critical patent/NO20005541D0/no
Publication of NO20005541L publication Critical patent/NO20005541L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/07—Suspension between moving magnetic core and housing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

En vibrasjonsaktuator omfatter en elektromekanisk signalomformer med en magnetis krets (1-4) og en drivende spole (5), en støtteramme (9), og en demper. (270) som elastisk understøtter den magnetiske krets på støtterammen for fleksibel demping av vibrasjonene i den magnetiske krets når en drivende vekselstrøm tilføres spolen (5). Demperen (27.0) omfatter et indre og et ytre ringparti (271, 272) og en flerhet av spiralfjærpartier (273) som er avgrenset av en flerhet av spiralspalter (274, 275) som er tildanneti demperen. For å redusere spiralfjærpartiet, hvis elastisitet er bestemt av de tilstøtende to spiralspalter, har hvert av spiralfjærpartiene en effektiv fjærlengde som er bestemt av en virksom vinkel (9) som er bestemt som en vinkel (i vinkelgrader) fra en indre ende av den innenforliggende spiralspalte til den ytre ende av den utenforliggende spiralspalte rundt et senter i demperen. Den virksomme vinkel er 55 vinkelgrader eller mer. I et foretrukket eksempel er den virksomme fjærlengde bestemt som et produkt (r x 9) av størrelsen av en gjennomsnittsradius (r) med enhet «mm» og størrelsen av den virksomme vinkel (9) med en enhet på vinkelgrader. Den virksomme fjærlengde er valgt til 320 eller mer, fortrinnsvis 400 eller mer.
NO20005541A 1999-03-03 2000-11-02 Vibrasjonsaktuator med en magnetisk krets som er elastisk understöttet av en spiraldemper med ökt elastisitet NO20005541L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5563499 1999-03-03
PCT/JP2000/001287 WO2000052961A1 (en) 1999-03-03 2000-03-03 Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance

Publications (2)

Publication Number Publication Date
NO20005541D0 NO20005541D0 (no) 2000-11-02
NO20005541L true NO20005541L (no) 2000-11-27

Family

ID=13004237

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20005541A NO20005541L (no) 1999-03-03 2000-11-02 Vibrasjonsaktuator med en magnetisk krets som er elastisk understöttet av en spiraldemper med ökt elastisitet

Country Status (10)

Country Link
US (1) US6377145B1 (no)
EP (1) EP1066736B1 (no)
KR (1) KR100446156B1 (no)
CN (1) CN1294832A (no)
CA (1) CA2330005A1 (no)
DE (1) DE60003118T2 (no)
MY (1) MY140966A (no)
NO (1) NO20005541L (no)
TW (1) TW457828B (no)
WO (1) WO2000052961A1 (no)

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Also Published As

Publication number Publication date
DE60003118D1 (de) 2003-07-10
US6377145B1 (en) 2002-04-23
WO2000052961A1 (en) 2000-09-08
KR20010043227A (ko) 2001-05-25
MY140966A (en) 2010-02-12
EP1066736B1 (en) 2003-06-04
NO20005541D0 (no) 2000-11-02
DE60003118T2 (de) 2004-04-08
CN1294832A (zh) 2001-05-09
CA2330005A1 (en) 2000-09-08
KR100446156B1 (ko) 2004-08-30
EP1066736A1 (en) 2001-01-10
TW457828B (en) 2001-10-01

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